Need help booking?
Unpublished phone-only deals available
GAI to MEL: distance & flight time
Gaithersburg (Montgomery County Airpark) → Melbourne (Melbourne International Airport)
10,181 mi
16,385 km · 8,847 nm
20h 26m
estimated nonstop flight time
+14h
time difference · heading west
See live GAI→MEL fares Phone-only fares on this route — call free
Flight time details
10,181 miles nonstop takes roughly 20h 26m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- MEL — Melbourne International Airport · Melbourne, Australia
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near GAI
Near MEL
- MEB · Melbourne Essendon Airport5 mi away
- MBW · Melbourne Moorabbin Airport25 mi away
- AVV · Avalon Airport32 mi away
- GEX · Geelong Airport47 mi away
Frequently asked questions
How far is GAI from MEL?
The flight distance from Gaithersburg (GAI) to Melbourne (MEL) is 10,181 miles (16,385 km, 8,847 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to MEL?
A nonstop flight takes about 20h 26m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Gaithersburg and Melbourne?
Melbourne is 14 hours ahead of Gaithersburg.
What is the cheapest way to fly from GAI to MEL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–MEL that never appear on search engines, with no booking fees.